CN103634845A - Device to device communication method, apparatus and system - Google Patents
Device to device communication method, apparatus and system Download PDFInfo
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- CN103634845A CN103634845A CN201210299075.5A CN201210299075A CN103634845A CN 103634845 A CN103634845 A CN 103634845A CN 201210299075 A CN201210299075 A CN 201210299075A CN 103634845 A CN103634845 A CN 103634845A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/03—Reselecting a link using a direct mode connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/03—Reselecting a link using a direct mode connection
- H04W36/033—Reselecting a link using a direct mode connection in pre-organised networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
- H04W36/142—Reselecting a network or an air interface over the same radio air interface technology
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
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Abstract
The invention discloses a device to device communication method, an apparatus and a system. In the method, a first D2D user device receives signaling of an operator network side, wherein the signaling is used for notifying the first D2D user device of using a WLAN for communication between devices; and the first D2D user device uses the WLAN for direct communication with one or more second D2D user devices in a predetermined area. According to the invention, the load of the D2D user devices on an operator network is reduced.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of device-to-device (Device to Device, referred to as D2D) communication means, Apparatus and system.
Background technology
Machine refers to machine (Machine to Machine, referred to as M2M) all technology and the means that between machine, connect.M2M theory has just occurred in eighties of last century the nineties, but has only rested on theory stage.After 2000, along with the development of mobile communication technology, the networking that realizes machinery equipment with mobile communication technology becomes possibility.Within 2002, left and right M2M business just occurs on market, and developing rapidly for several years subsequently, becomes the focus of numerous communication equipment Shang He telecom operators.The machine quantity in the whole world is much more a lot of than people's quantity at present, therefore can predict the good market prospects of M2M technology.
To M2M communications applications scene, research shows to provide M2M communication to have market potential prospect on mobile network.But M2M business has proposed a lot of new requirements to system, in order to strengthen mobile network's competitiveness in this respect, be necessary existing mobile network to be optimized, carry out more effective support M2M communication.
Existing mobile communications network designs mainly for person to person's communication, and to machine and machine, deficiency is optimized in man-machine communication.In addition, how operator can provide M2M communication service with low cost, is also that successfully key is disposed in M2M communication.
Based on above situation, be necessary to study the solution that mobile network supports M2M communication, solution will be reused existing network to greatest extent, reduces impact that a large amount of M2M communication causes network and the complexity of operation maintenance.
At present telecommunication market competition is growing more intense, and rate constantly decline, and operator's profit margin constantly reduces, and with the Communications Market on artificial basis, being tending towards saturated ，M2MDui operator is brand-new opportunity to develop.
In order to effectively utilize mobile network resource, third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) machine type communication (Machine Type Communication proposed, referred to as MTC), be that machine is to machine (Machine to Machine), the business that machine carries out communication to people (Machine to Man), its scope of business is far beyond Human To Human (Human to Human in the past, referred to as H2H) between communication, MTC is in access control, charging, fail safe, QoS, the aspects such as business model and present H2H communication mode make a big difference.
Device-to-device (D2D, Device to Device) communication refers to contiguous equipment room direct communication, and as bluetooth, owing to lacking network management and control, the general unlicensed spectrum that adopts of D2D communication, as 2.4GHz.Along with popularizing fast of smart mobile phone, a lot of new application have been there are, as position-based application, social application etc.In mobile communications network, communication between subscriber equipment must be undertaken by network, as shown in Figure 1, even if two equipment are positioned at contiguous position, this is because Virtual network operator need to, to authorizing frequency spectrum to carry out management and control, when communicating pair use authority frequency spectrum communicates, must pass through network, to realize the scheduling of resource of network to communication activity, charging and management etc.In order to reduce offered load, some company has proposed the imagination of nearby device direct communication, and as shown in Figure 2, in figure, solid line represents user's face communication path, and dotted line represents chain of command communication path.In MTC, also there is the demand of MTC equipment room direct communication, as needed to communicate between MTC equipment and between MTC equipment and gateway, 3GPP also starts D2D to communicate by letter and study at present.D2D comprises two aspects at present: find and communicate by letter.Find in adjacent domain, to identify the subscriber equipment of the ability with D2D, communication is that D2D subscriber equipment carries out user plane data transfer by direct connection between user or through eNB.
For D2D communications of user equipment in correlation technique, cause the problem that carrier network duty ratio is larger, not yet propose at present effective solution.
Summary of the invention
For D2D communications of user equipment in correlation technique, cause the problem that carrier network duty ratio is larger, the invention provides D2D communication means, Apparatus and system, at least to address this problem.
According to an aspect of the present invention, a kind of D2D communication means is provided, comprise: a D2D subscriber equipment receives the signaling of carrier network side, wherein, described signaling is used for notifying a described D2D subscriber equipment to use WLAN (wireless local area network) WLAN to carry out communication between devices; A described D2D subscriber equipment uses one or more the 2nd D2D subscriber equipmenies of described WLAN and presumptive area to carry out direct communication.
Preferably, receive the first signaling of carrier network side at a D2D subscriber equipment before, also comprise: a described D2D equipment is found described one or more the 2nd D2D subscriber equipmenies in described presumptive area; A described D2D equipment sends WLAN communication request to described carrier network side; Or a described D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment are found in described presumptive area by described carrier network side.
Preferably, described WLAN communication request comprise following one of at least: the sign of the 2nd D2D subscriber equipment, application identities, WLAN communication identifier.
Preferably, described signaling also comprises: the WLAN indication information of communicating by letter, and wherein, described WLAN communication indication information comprises: participate in the D2D customer equipment identification of WLAN communication and/or the parameter of WLAN communication, wherein, described WLAN communication refers to by WLAN and carries out direct communication between subscriber equipment.
Preferably, at a described D2D subscriber equipment, use after the 2nd D2D subscriber equipment of described WLAN and presumptive area communicates, also comprise: a described D2D subscriber equipment switches to carrier network under the control of described carrier network side; A D2D subscriber equipment after described switching communicates with described one or more D2D subscriber equipmenies in described carrier network.
Preferably, described presumptive area comprises: meet the region of D2D discovery or meet the region that D2D communicates by letter.
According to another aspect of the invention, provide a kind of D2D communication means, having comprised: carrier network side joint has been received the WLAN (wireless local area network) WLAN communication request that a D2D subscriber equipment sends; Or described carrier network side is found a described D2D subscriber equipment and one or more the 2nd D2D subscriber equipment in presumptive area, wherein, described WLAN communication request is carried out communication between devices for one or more the 2nd D2D subscriber equipmenies of asking a D2D subscriber equipment and a D2D subscriber equipment to be found in described presumptive area; Described carrier network side direction the one D2D subscriber equipment sends signaling, notifies a described D2D subscriber equipment to use wireless lan (wlan) and described one or more D2D subscriber equipment to carry out direct communication.
Preferably, described WLAN communication request comprise following one of at least: the sign of the 2nd D2D subscriber equipment, application identities, WLAN communication identifier.
Preferably, before described carrier network side direction the one D2D subscriber equipment sends signaling, also comprise: described carrier network side determines that a described D2D subscriber equipment meets with described one or more the 2nd D2D subscriber equipmenies the condition that WLAN communicates by letter.
Preferably, described signaling also comprises: the WLAN indication information of communicating by letter, wherein, described WLAN communication indication information comprises: participate in the D2D customer equipment identification of WLAN communication and/or the parameter of WLAN communication.
Preferably, after described carrier network side direction the one D2D subscriber equipment sends signaling, also comprise: meet defaultly while switching to the condition of carrier network from described WLAN judging, described carrier network side is controlled a D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment and switched to described carrier network and communicate; Meet defaultly while switching to the condition of described WLAN from described carrier network judging, described carrier network side is controlled a D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment and is switched to described WLAN and carry out direct communication.Preferably, described first condition comprise following one of at least: carrier policy, offered load, D2D communication equipment spacing; Described second condition comprise following one of at least: carrier policy, offered load, D2D communication equipment spacing.
According to a further aspect in the invention, provide a kind of D2D communicator, be applied to D2D subscriber equipment, comprise: the first receiver module, for receiving the signaling of carrier network side, wherein, described signaling is used for notifying described subscriber equipment to use wireless lan (wlan) to carry out communication between devices; First communication module, for being used one or more the 2nd D2D subscriber equipmenies of described WLAN and presumptive area to carry out direct communication.
Preferably, said apparatus also comprises: first finds module, for finding described one or more the 2nd D2D subscriber equipmenies in described presumptive area; Sending module, for sending WLAN communication request to described carrier network side.
Preferably, said apparatus also comprises: handover module, for switching to carrier network under the control in described carrier network side; Second communication module, for communicating at described carrier network and described one or more D2D subscriber equipmenies.
In accordance with a further aspect of the present invention, a kind of D2D communicator is provided, be applied to carrier network side, comprise: the 3rd receiver module, the WLAN (wireless local area network) WLAN communication request sending for receiving a D2D subscriber equipment, wherein, described WLAN communication request is carried out communication between devices for one or more the 2nd D2D subscriber equipmenies of asking a D2D subscriber equipment and a D2D subscriber equipment to be found in presumptive area; Or second find module, for find a described D2D subscriber equipment and one or more the 2nd D2D subscriber equipment in described presumptive area; Sending module, for sending signaling to a D2D subscriber equipment, notifies a described D2D subscriber equipment to use WLAN and described one or more D2D subscriber equipment to carry out direct communication.
Preferably, said apparatus also comprises: determination module, and for determining that a described D2D subscriber equipment meets with described one or more the 2nd D2D subscriber equipmenies the condition that WLAN communicates by letter.
Preferably, said apparatus also comprises: the first control module, for meeting defaultly while switching to the condition of carrier network from WLAN judging, control a D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment and switch to described carrier network and communicate; The second control module, for judging while meeting the default condition from carrier network, controls a D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment and switches to described WLAN and carry out direct communication.。
According to another aspect of the invention, provide a kind of D2D communication system, having comprised: above-mentioned D2D communicator (being applied to D2D subscriber equipment) and above-mentioned D2D communicator (being applied to carrier network side).
By the present invention, adopt a D2D subscriber equipment after receiving the first signaling of carrier network side, use one or more the 2nd D2D subscriber equipmenies of WLAN and presumptive area to communicate, having realized between D2D subscriber equipment adopts WLAN to communicate, solve D2D communications of user equipment in correlation technique and caused the problem that carrier network duty ratio is larger, and then reached the load of reduction D2D equipment to carrier network, and improve the effect of the utilance of WLAN resource.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the network service schematic diagram according to correlation technique;
Fig. 2 is the D2D communication scheme according to correlation technique;
Fig. 3 is according to the first pass figure of the D2D communication means of the embodiment of the present invention;
Fig. 4 is according to the second flow chart of the D2D communication means of the embodiment of the present invention;
Fig. 5 is according to the first structured flowchart of the D2D communicator of the embodiment of the present invention;
Fig. 6 is preferred the first structured flowchart according to the D2D communicator of the embodiment of the present invention;
Fig. 7 is according to the second structured flowchart of the D2D communicator of the embodiment of the present invention;
Fig. 8 is preferred the second structured flowchart according to the D2D communicator of the embodiment of the present invention;
Fig. 9 is according to the structured flowchart of the D2D communication system of the embodiment of the present invention;
Figure 10 is the flow chart one of D2D communication means according to the preferred embodiment of the invention;
Figure 11 is the flowchart 2 of D2D communication means according to the preferred embodiment of the invention;
Figure 12 is the flow chart 3 of D2D communication means according to the preferred embodiment of the invention;
Figure 13 is the flow chart four of D2D communication means according to the preferred embodiment of the invention;
Figure 14 is that WLAN realizes the structured flowchart of the system of D2D communication according to the preferred embodiment of the invention; And
Figure 15 is that WLAN realizes the structured flowchart of the subscriber equipment of D2D communication according to the preferred embodiment of the invention.
Embodiment
In practical communication, WLAN (wireless local area network) (Wireless LocalArea Network, referred to as WLAN) works in 2.5GHz or the unauthorized frequency range of 5GHz, the local area network (LAN) forming with wireless mode.The LAN that WLAN utilizes the technology of radio frequency (Radio Frequency, referred to as RF) to form, makes WLAN can utilize simple access architecture to allow user see through it, is not subject to the restriction of network layout, carries out easily data transmit-receive.In the application's following preferred implementation, in WLAN, also there is the direct communication between equipment, the equipment room direct communication of employing WLAN realizes the communication requirement of D2D.
In following preferred embodiment, recorded when finding that D2D subscriber equipment is positioned at WLAN communication range, determine adopting WLAN to realize D2D communication by which network element is determined, and realize the switching of D2D equipment between WLAN communication mode and network communication mode, realized by WLAN and realized the communication between D2D subscriber equipment, thereby solved in correlation technique, between D2D, communicated by letter and cause the larger problem of carrier network side duty ratio.
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
This preferred embodiment provides a kind of D2D communication means, and Fig. 3 is according to the first pass figure of the D2D communication means of the embodiment of the present invention, and as shown in Figure 3, the method comprises the steps that S302 is to step S304.
Step S302: a D2D subscriber equipment receives the signaling of carrier network side, wherein, this this signaling is used for notifying a D2D subscriber equipment to use WLAN to carry out communication between devices.
Step S304: a D2D subscriber equipment uses one or more the 2nd D2D subscriber equipmenies of WLAN and presumptive area to carry out direct communication.
Pass through above-mentioned steps, the one D2D subscriber equipment is after receiving the signaling of carrier network side, use one or more the 2nd D2D subscriber equipmenies of WLAN and presumptive area to carry out direct communication, having realized between D2D subscriber equipment adopts WLAN to carry out direct communication, reduce the load of D2D equipment to carrier network, and improved the utilance of WLAN resource.
Preferably, in practical communication process, after a D2D subscriber equipment receives this signaling, also can need or system configuration according to self, not use one or more the 2nd D2D subscriber equipmenies of WLAN and presumptive area to carry out direct communication.Preferably, a D2D subscriber equipment can, to a message of carrier network side feedback, show that a D2D is not used WLAN to carry out direct communication to ratio.
When implementing, one or more D2D subscriber equipmenies can be found by a D2D subscriber equipment, or found by carrier network side.
Mode one: when a D2D equipment is found this one or more the 2nd D2D subscriber equipmenies in presumptive area, a D2D equipment sends WLAN communication request to carrier network side, then carrier network side direction the one D2D subscriber equipment sends signaling.
Mode two: when a D2D subscriber equipment and these one or more the 2nd D2D subscriber equipmenies are found in this presumptive area by carrier network side, carrier network side direction the one D2D subscriber equipment sends signaling.
Preferably, presumptive area comprises: meet the region of D2D discovery or meet the region that D2D communicates by letter.Wherein, this meets region that D2D finds to meet from this region that D2D communicates by letter can be different region.
In order to improve the reliability of WLAN communication request, this WLAN communication request comprise following one of at least: the sign of the 2nd D2D subscriber equipment, application identities, WLAN communication identifier.
When implementing, in order to improve the reliability of communicating by letter between D2D subscriber equipment, can also in the first signaling, carry WLAN communication indication information, wherein, this WLAN communication indication information comprises: participate in the D2D customer equipment identification of WLAN communication and/or the parameter of WLAN communication, wherein, this WLAN communication refers to by WLAN and carries out the direct communication between subscriber equipment.
As an execution mode preferably, at a D2D subscriber equipment, use after the 2nd D2D subscriber equipment of WLAN and presumptive area communicates, a D2D subscriber equipment switches to carrier network under the control of carrier network side; A D2D subscriber equipment after switching communicates with these one or more D2D subscriber equipmenies in this carrier network.This optimal way has been realized the switching that D2D subscriber equipment is communicated by letter between WLAN and carrier network.
Preferably, this presumptive area comprises: meet the region of D2D discovery or meet the region that D2D communicates by letter.
This preferred embodiment provides a kind of D2D communication means, and Fig. 4 is according to the first pass figure of the D2D communication means of the embodiment of the present invention, and as shown in Figure 4, the method comprises the steps that S402 is to step S404.
Step S402: carrier network side joint is received the WLAN (wireless local area network) WLAN communication request that a D2D subscriber equipment sends; Or carrier network side is found a D2D subscriber equipment and one or more the 2nd D2D subscriber equipment in presumptive area, wherein, this WLAN communication request is carried out communication between devices for one or more the 2nd D2D subscriber equipmenies of asking a D2D subscriber equipment and a D2D subscriber equipment to be found in presumptive area.
Step S404: carrier network side direction the one D2D subscriber equipment sends signaling, triggers a D2D subscriber equipment and uses WLAN and this one or more D2D subscriber equipmenies to carry out direct communication.
Pass through above-mentioned steps, carrier network side direction the one D2D subscriber equipment sends after signaling, trigger the one or more two D2D subscriber equipmenies of a D2D subscriber equipment by WLAN and presumptive area and carry out direct communication, having realized between D2D subscriber equipment adopts WLAN to carry out direct communication, reduce the load of D2D equipment to carrier network, and improved the utilance of WLAN resource.
As an execution mode preferably, this WLAN communication request comprise following one of at least: the sign of the 2nd D2D subscriber equipment, application identities, WLAN communication identifier.
In order to improve the reliability of WLAN communication, before step S402, carrier network side determines that a D2D subscriber equipment meets with one or more the 2nd D2D subscriber equipmenies the condition that WLAN communicates by letter.
In order to improve the reliability of WLAN communication, this first signaling also carries WLAN communication indication information, and wherein, this WLAN communication indication information comprises: participate in the D2D customer equipment identification of WLAN communication and/or the parameter of WLAN communication.
When implementing, after step S404, meet defaultly while switching to the first condition of carrier network from WLAN judging, carrier network side is controlled a D2D subscriber equipment and one or more the 2nd D2D subscriber equipment and is switched to carrier network and communicate; Meet defaultly while switching to the second condition of WLAN from carrier network judging, carrier network side is controlled a D2D subscriber equipment and one or more the 2nd D2D subscriber equipment and is switched to WLAN and carry out direct communication.This optimal way has been realized the switching that D2D subscriber equipment is communicated by letter between WLAN and carrier network.
Preferably, first condition comprise following one of at least: carrier policy, offered load, D2D communication equipment spacing; Second condition comprise following one of at least: carrier policy, offered load, D2D communication equipment spacing.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
In another embodiment, also provide a kind of D2D communication software, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored above-mentioned D2D communication software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides a kind of D2D communicator, be applied to D2D subscriber equipment, this D2D communicator can be for realizing above-mentioned D2D communication means and preferred implementation, carried out explanation, repeat no more, below the module relating in this D2D communicator is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Fig. 5 is according to the first structured flowchart of the D2D communicator of the embodiment of the present invention, and as shown in Figure 5, this device comprises: the first receiver module 52, first communication module 54, is described in detail said structure below.
The first receiver module 52, for receiving the first signaling of carrier network side, wherein, the first signaling is used for notifying this D2D subscriber equipment to use WLAN to carry out communication between devices; First communication module 54, is connected to the first receiver module 52, for using one or more the 2nd D2D subscriber equipmenies of WLAN and presumptive area to carry out direct communication.
Fig. 6 is preferred the first structured flowchart according to the D2D communicator of the embodiment of the present invention, and as shown in Figure 6, this device also comprises: first finds module 62, sending module 64, and handover module 66, second communication module 68, is described in detail said structure below.
Preferably, said apparatus also comprises: first finds module 62, for find one or more the 2nd D2D subscriber equipmenies in this presumptive area; Sending module 64, is connected to the first discovery module 62, for sending WLAN communication request to this carrier network side.
Preferably, said apparatus also comprises: handover module 66, for switching to carrier network under the control in carrier network side; Second communication module 68, is connected to handover module 66, for communicating at carrier network and one or more D2D subscriber equipmenies.
In another embodiment, also provide a kind of D2D communication software, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored above-mentioned D2D communication software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides a kind of D2D communicator, be applied to carrier network side, this D2D communicator can be for realizing above-mentioned D2D communication means and preferred implementation, carried out explanation, repeat no more, below the module relating in this D2D communicator is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Fig. 7 is according to the second structured flowchart of the D2D communicator of the embodiment of the present invention, and as shown in Figure 7, this device comprises: the 3rd receiver module 72, the second is found module 74, and sending module 76, is elaborated to said structure below.
The 3rd receiver module 72, the WLAN (wireless local area network) WLAN communication request sending for receiving a D2D subscriber equipment, wherein, this WLAN communication request is carried out communication between devices for one or more the 2nd D2D subscriber equipmenies of asking a D2D subscriber equipment and a D2D subscriber equipment to be found in presumptive area; Or second find module 74, for finding a D2D subscriber equipment and one or more the 2nd D2D subscriber equipment in presumptive area; Sending module 76, is connected to the 3rd receiver module 72 and second and finds module 74, for sending the first signaling to a D2D subscriber equipment, notifies a D2D subscriber equipment to use WLAN and one or more D2D subscriber equipment to carry out direct communication.
Fig. 8 is preferred the second structured flowchart according to the D2D communicator of the embodiment of the present invention, and as shown in Figure 7, this device also comprises: determination module 82, the first control module 84, the second control modules 86, are described in detail said structure below.
Preferably, said apparatus also comprises: determination module 82, is connected to the first sending module 76, for determining that a D2D subscriber equipment meets with one or more the 2nd D2D subscriber equipmenies the condition that WLAN communicates by letter.
Preferably, said apparatus also comprises: the first control module 84, for meeting defaultly while switching to the first condition of carrier network from WLAN judging, control a D2D subscriber equipment and one or more the 2nd D2D subscriber equipment and switch to carrier network and communicate;
The second control module 86, for judging while meeting the default second condition from carrier network, controls a D2D subscriber equipment and one or more the 2nd D2D subscriber equipment and switches to WLAN and carry out direct communication.。
This preferred embodiment also provides a kind of D2D communication system, Fig. 9 is according to the structured flowchart of the D2D communication system of the embodiment of the present invention, as shown in Figure 9, this system comprises D2D communicator (being applied to D2D subscriber equipment) 2 and D2D communicator (being applied to carrier network side) 4, wherein, the structure of this D2D communicator (being applied to D2D subscriber equipment) 2 is as shown in Fig. 5 or 6, and the structure of D2D communicator (being applied to carrier network side) 4, as shown in Fig. 7 or 8, does not repeat them here.
Below in conjunction with preferred embodiment, describe, following preferred embodiment combines above-described embodiment and preferred implementation.
Preferred embodiment one
This preferred embodiment provides a kind of WLAN to comprise for method the method for D2D communication: network side or D2D subscriber equipment are found other D2D subscriber equipmenies of adjacent domain; Network side notice or D2D user equipment requests adopt WLAN to realize D2D communication; Network side is determined the switching of D2D subscriber equipment between WLAN communication and two kinds of modes of network service.By the present invention, can realize D2D subscriber equipment and adopt WLAN to communicate.
By the technical scheme of this preferred embodiment, can realize reduction offered load, reduce the effect of D2D communication to the dependence of network.
Preferred embodiment two
This preferred embodiment provides the method for a kind of WLAN for D2D communication, and Fig. 9 is the flow chart one of D2D communication means according to the preferred embodiment of the invention, and as shown in figure 10, the method comprises the steps that S902 is to step S908.
Step S902: find D2D subscriber equipment in adjacent domain.
Preferably, this adjacent domain is set regular region in advance for meeting, and in this region, can find D2D subscriber equipment.In this preferred embodiment, the adjacent domain that the adjacent domain that D2D finds is communicated by letter with D2D can be different, can define respectively.
Discovery in this preferred embodiment can be undertaken by network equipment and/or D2D subscriber equipment, network equipment or D2D subscriber equipment are searched for the D2D subscriber equipment of adjacent domain within the specific time period, special time period refers to a period of time of setting into D2D discovery, at this moment section in, D2D subscriber equipment is transmitted signal in fixing resource, accordingly, network equipment and/or other D2D subscriber equipmenies are searched for above-mentioned signal on fixed resource; Above-mentioned network equipment refers to eNB(evolved NodeB) it should be noted that, discovery procedure need to be carried out in mandate frequency range, is not the existing discovery mode by WLAN.
D2D subscriber equipment in this preferred embodiment refers to: have D2D and find and communication capacity, the signing D2D subscriber equipment that uses D2D function.It should be noted that, the D2D subscriber equipment in the application has WLAN communication function.
In this preferred embodiment, if network equipment is found D2D subscriber equipment in adjacent domain, network side can send a notification message to the D2D subscriber equipment in adjacent domain; The subscriber equipment of generally, having contracted D2D and having opened D2D discovery feature can be received above-mentioned notification message.
In this preferred embodiment, if subscriber equipment is found other D2D subscriber equipmenies in adjacent domain, subscriber equipment can send indication information to network side, the D2D subscriber equipment of being found to inform.
Between step S904:D2D subscriber equipment, adopt WLAN communication.
In this preferred embodiment, can Adoption Network side notice or D2D user equipment requests carry out WLAN communication;
The notice of network side comprises communicating pair or sign in many ways, WLAN messaging parameter etc.; Wherein sign can be the intrinsic sign of UE, as IMSI, and MSISDN, IMEI etc., or the code name of UE, as Zhang San's IPhone-4.This WLAN messaging parameter comprises WLAN communication identifier, the WLAN communication resource, and WLAN signal strength signal intensity, the distance between D2D subscriber equipment etc., wherein WLAN communication identifier is used to indicate and utilizes WLAN to communicate.
Preferably, network side judges whether to carry out WLAN according to the distance between subscriber equipment and UE capability and communicates by letter; If subscriber equipment spacing, within WLAN communication range, and has WLAN communication capacity, can carry out WLAN communication, otherwise can not carry out WLAN communication;
As an execution mode preferably: D2D user equipment requests comprises the sign of communication counterpart, WLAN communication indication etc.; Network side is determined communicating pair or in many ways whether can WLAN communication, and if so, network side sends and confirms response and WLAN messaging parameter to D2D subscriber equipment, otherwise network side sends refusal to D2D subscriber equipment and responds and Reason For Denial.
In this preferred embodiment, WLAN communication is undertaken by D2D equipment autonomously, and network side is not controlled the resource of WLAN communication; For safety and billing function, can carry out according to the local policy of operator.
Preferably, in WLAN communication, user face data directly carries out by subscriber equipment, and chain of command signaling completes by network or D2D subscriber equipment, to realize the management and control to WLAN communication.
In this preferred embodiment, if sign off between D2D subscriber equipment, D2D subscriber equipment disconnects, and discharges the corresponding communication resource.
Step S906: judge whether to continue to communicate by letter by WLAN, if so, execution step S904, otherwise execution step S908.
As an execution mode preferably, this judgement can be undertaken by subscriber equipment or network equipment, as subscriber equipment detects signal of communication quality lower than WLAN thresholding, to network side, send indication, network side determines whether that according to indication Adoption Network continues communication; Or network equipment detects the communication range (adjacent domain) that subscriber equipment has exceeded D2D, network side determines whether to be switched to by network and continues communication, and sends indication information to subscriber equipment.
Step S908:D2D subscriber equipment communicates by network, and flow process finishes.
In this preferred embodiment, D2D subscriber equipment cannot continue to communicate by letter by WLAN, and network side is switched to subscriber equipment by network and continues communication.
Preferably, if subscriber equipment is positioned at the region without the network coverage, as the scene of public safety, subscriber equipment cannot continue communication, now communication disruption by network.When network service finishes, subscriber equipment sends and finishes communication request to network side, and network side disconnects and release communication resources.
Embodiment tri-
This preferred embodiment provides the method for a kind of WLAN for D2D communication, the scene of this preferred embodiment is: network side finds that D2D subscriber equipment indication adopt WLAN communication, Figure 11 is the flowchart 2 of D2D communication means according to the preferred embodiment of the invention, as shown in figure 11, the method comprises the steps that S1002 is to step S1010.
Step S1002: network side is found two D2D equipment in adjacent domain.
In this preferred embodiment, adjacent domain is for D2D, to find the adjacent domain of regulation.
Preferably, two D2D subscriber equipmenies comprise two and plural D2D subscriber equipment.
Step S1004: network side sends the indication information that adopts WLAN communication to D2D subscriber equipment.
In this preferred embodiment, WLAN communication need to meet 2 conditions:
Condition 1: subscriber equipment has the ability of WLAN communication.
Condition 2: within the distance between subscriber equipment is positioned at WLAN communication range.Wherein network side judges by inquiry subscription data whether subscriber equipment has WLAN communication capacity, as, network side is to the subscription data of HSS/HLR inquiring user equipment.
In this preferred embodiment, if determining UE, network side meets the condition of WLAN communication, network side sends WLAN communication indication information to D2D subscriber equipment.
Preferably, the indication information of WLAN communication comprises: participate in the customer equipment identification of WLAN communication, the parameter of WLAN communication.
Step S1006:D2D subscriber equipment utilizes WLAN to communicate.
Preferably, the WLAN messaging parameter that the utilization of D2D subscriber equipment is received carries out WLAN communication.
In order to realize the safety of WLAN communication, charging etc. can adopt existing WLAN related procedure to carry out, and network side is monitored the WLAN communication of D2D equipment room, to guarantee the service quality (Quality of Service, referred to as QoS) of communication.
Step S1008: judging whether to continue to communicate by letter by WLAN, is to perform step S1006, otherwise perform step S1010 if judgment result is that.
It should be noted that, the operation of this step is identical with step S908, does not repeat them here.
Step S1010:D2D subscriber equipment continues communication by network, and flow process finishes.
It should be noted that, this step is identical with step S910, does not repeat them here.
Embodiment tetra-
This preferred embodiment provides the method for a kind of WLAN for D2D communication, the scene of this preferred embodiment is: subscriber equipment is found D2D subscriber equipment and asked WLAN communication, Figure 12 is the flow chart 3 of D2D communication means according to the preferred embodiment of the invention, as shown in figure 12, the method comprises the steps that S1102 is to step S1116.
Step S1102:D2D subscriber equipment is found other D2D subscriber equipmenies in adjacent domain.
In this preferred embodiment, D2D subscriber equipment is opened discovery feature, periodically detects the D2D subscriber equipment of adjacent domain; Wherein sense cycle is to set in advance, and within the above-mentioned cycle, D2D subscriber equipment is transmitted signal in predetermined resource, and corresponding, D2D subscriber equipment detects the signal of other D2D subscriber equipmenies within the discovery cycle.
Step S1104:D2D subscriber equipment sends the request that adopts WLAN communication to network side.
In this step, request is initiated in the application on D2D subscriber equipment, triggers D2D subscriber equipment and sends WLAN communication request to network side, and wherein, WLAN communication request comprises: the sign of the other side D2D subscriber equipment, application identities, WLAN communication identifier etc.
Step S1106: network side judges whether to carry out WLAN communication is to turn to step S1108, otherwise perform step S1114 if judgment result is that.
In this preferred embodiment, WLAN communication need to meet 2 conditions:
Condition 1: subscriber equipment has the ability of WLAN communication.
Condition 2: within the distance between subscriber equipment is positioned at WLAN communication range.Wherein network side judges by inquiry subscription data whether subscriber equipment has WLAN communication capacity, as, network side is to the subscription data of HSS/HLR inquiring user equipment.
Preferably, if network side is determined the condition that meets WLAN communication, network side sends WLAN communication indication information to D2D subscriber equipment.
Step S1108: network side sends response message and WLAN messaging parameter.
Wherein, this response message indication network side joint is subject to WLAN communication request.
Step S1110:D2D subscriber equipment communicates by WLAN.
It should be noted that, this step is identical with step S1006, does not repeat them here.
Step S1112, judges whether to continue to communicate by letter by WLAN, if judgment result is that, is to turn to step S1110, otherwise perform step S1116.
In this step, network side is communicated by letter and is monitored D2D, to guarantee communication quality.
This step is identical with step S908, does not repeat them here.
Step S1114: network side sends refusal response message, and indication communicates by network.
Preferably, this exclude information comprises Reason For Denial, cannot continue to communicate by letter by WLAN;
Preferably, network side judgement can continue by network service, sends indication information, otherwise network side indication communication disruption and reason.
Step S1116: start by network service, until sign off.
In this step, D2D subscriber equipment discharges the WLAN communication resource, continues communication in the resource of distributing at network side.
Preferred embodiment five
This preferred embodiment provides the method for a kind of WLAN for D2D communication, the scene of this preferred embodiment is: network side is found D2D subscriber equipment, D2D user equipment requests WLAN communication, Figure 13 is the flow chart four of D2D communication means according to the preferred embodiment of the invention, as shown in figure 13, the method comprises the steps that S1202 is to step S1218.
Step S1202: network side is found two D2D subscriber equipmenies in adjacent domain.
Need explanation, this step is identical with step S1002, does not repeat them here.
Step S1204: network side sends announcement information to the D2D subscriber equipment in adjacent domain.
This notification message comprises: signing D2D customer equipment identification in current adjacent domain, and the D2D application identities on adjacent domain D2D subscriber equipment, etc.; If have subscriber equipment to enter or leave adjacent domain, network side update notification message.
Step S1206:D2D subscriber equipment is communicated by letter to network side request WLAN.
In this step, the notified message of D2D subscriber equipment, finds that adjacent domain has own interested application, trigger D2D subscriber equipment and send WLAN communication request information to network side, comprising: the sign of the other side D2D subscriber equipment, application identities, WLAN communication identifier etc.
Step S1208: network side judges whether to carry out WLAN communication is to perform step S1210, otherwise perform step S1216 if judgment result is that.
This step is identical with step S908, does not repeat them here.
Step S1210: network side sends response message and WLAN messaging parameter.
This step is identical with step S908, does not repeat them here.
Step S1212, subscriber equipment communicates by WLAN.
This step is identical with step S1108, does not repeat them here.
Step S1214, judges whether to continue to communicate by letter by WLAN, if judgment result is that, is to perform step S1212, otherwise perform step S1218.
If directly D2D communication of subscriber equipment, can not communicate by letter by intermediate node, network side is switched to network communication mode by communication.
Step S1216: network side sends refusal response message, and indication communicates by network.
This step is identical with step S1108, does not repeat them here.
Step S1218, starts to communicate by letter by carrier network, until sign off.
This step is identical with step S1116, does not repeat them here.
Preferred embodiment six
This preferred embodiment provides a kind of WLAN to realize the system of D2D communication, Figure 13 is that WLAN realizes the system architecture diagram that D2D communicates by letter according to the preferred embodiment of the invention, as shown in figure 14, this system comprises: subscriber equipment 132(is for carrying out the function of D2D subscriber equipment of above preferred embodiment) and network side 134(be used for carrying out the function of the carrier network side of above preferred embodiment), below said structure is described in detail.
Network side 134, comprises eNB, MME, and for finding the D2D subscriber equipment of adjacent domain, indication D2D subscriber equipment adopts WLAN to communicate; Subscriber equipment 132, for finding the D2D subscriber equipment of adjacent domain, carries out WLAN with adjacent domain D2D subscriber equipment and communicates by letter.
Preferably, network side 134, also for judging whether to adopt WLAN communication, and and to the D2D subscriber equipment of adjacent domain, send a notification message, and switch communication mode between WLAN and network, and start or finish WLAN communication according to user equipment requests.
Preferably, subscriber equipment 132, also for receiving the notification message of adjacent domain, the WLAN communication of request adjacent domain.
Preferred embodiment seven
The present invention also provides a kind of subscriber equipment, Figure 15 is that WLAN realizes the user device architecture block diagram that D2D communicates by letter according to the preferred embodiment of the invention, as shown in figure 14, this subscriber equipment comprises: find that unit 1322(finds the function of module 62 for carrying out above-described embodiment first), communication unit 1324(is for carrying out the function that above-described embodiment is found module 64 and first communication module 54), below said structure is elaborated.
Find unit 1322, for finding other D2D subscriber equipmenies of adjacent domain; Communication unit 1324, is connected to and finds for sending WLAN communication request to network side, also for the D2D subscriber equipment with adjacent domain, to carry out unit 1322 WLAN and communicate by letter.
By above-described embodiment, a kind of D2D communication means, Apparatus and system are provided, to have realized and it should be noted that, these technique effects are not that above-mentioned all execution modes have, some technique effect is that some preferred implementation just can obtain.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (19)
1. a device-to-device D2D communication means, is characterized in that, comprising:
The one D2D subscriber equipment receives the signaling of carrier network side, and wherein, described signaling is used for notifying a described D2D subscriber equipment to use WLAN (wireless local area network) WLAN to carry out communication between devices;
A described D2D subscriber equipment uses one or more the 2nd D2D subscriber equipmenies of described WLAN and presumptive area to carry out direct communication.
2. method according to claim 1, is characterized in that, before receiving the signaling of carrier network side, also comprises at a D2D subscriber equipment:
A described D2D equipment is found described one or more the 2nd D2D subscriber equipmenies in described presumptive area; A described D2D equipment sends WLAN communication request to described carrier network side; Or
A described D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment are found in described presumptive area by described carrier network side.
3. method according to claim 2, is characterized in that,
Described WLAN communication request comprise following one of at least: the sign of the 2nd D2D subscriber equipment, application identities, WLAN communication identifier.
4. method according to claim 1, is characterized in that,
Described signaling also comprises: the WLAN indication information of communicating by letter, wherein, described WLAN communication indication information comprises: participate in the D2D customer equipment identification of WLAN communication and/or the parameter of WLAN communication, wherein, described WLAN communication refers to by WLAN carries out the direct communication between subscriber equipment.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, at a described D2D subscriber equipment, use after the 2nd D2D subscriber equipment of described WLAN and presumptive area communicates, also comprise:
A described D2D subscriber equipment switches to carrier network under the control of described carrier network side;
A D2D subscriber equipment after described switching communicates with described one or more D2D subscriber equipmenies in described carrier network.
6. according to the method described in any one in claim 1 to 4, it is characterized in that, described presumptive area comprises: meet the region of D2D discovery or meet the region that D2D communicates by letter.
7. a device-to-device D2D communication means, is characterized in that, comprising:
Carrier network side joint is received the WLAN (wireless local area network) WLAN communication request that a D2D subscriber equipment sends; Or described carrier network side is found a described D2D subscriber equipment and one or more the 2nd D2D subscriber equipment in presumptive area, wherein, described WLAN communication request is carried out communication between devices for one or more the 2nd D2D subscriber equipmenies of asking a D2D subscriber equipment and a D2D subscriber equipment to be found in described presumptive area;
Described carrier network side direction the one D2D subscriber equipment sends signaling, notifies a described D2D subscriber equipment to use WLAN (wireless local area network) WLAN and described one or more D2D subscriber equipment to carry out direct communication.
8. method according to claim 7, is characterized in that,
Described WLAN communication request comprise following one of at least: the sign of the 2nd D2D subscriber equipment, application identities, WLAN communication identifier.
9. method according to claim 7, is characterized in that, before described carrier network side direction the one D2D subscriber equipment sends signaling, also comprises:
Described carrier network side determines that a described D2D subscriber equipment meets with described one or more the 2nd D2D subscriber equipmenies the condition that WLAN communicates by letter.
10. method according to claim 7, is characterized in that,
Described signaling also comprises: the WLAN indication information of communicating by letter, wherein, described WLAN communication indication information comprises: participate in the D2D customer equipment identification of WLAN communication and/or the parameter of WLAN communication.
11. according to the method described in any one in claim 7 to 10, it is characterized in that, after described carrier network side direction the one D2D subscriber equipment sends signaling, also comprises:
Meet defaultly while switching to the first condition of carrier network from described WLAN judging, described carrier network side is controlled a D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment and is switched to described carrier network and communicate;
Meet defaultly while switching to the second condition of described WLAN from described carrier network judging, described carrier network side is controlled a D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment and is switched to described WLAN and carry out direct communication.
12. methods according to claim 11, is characterized in that, described first condition comprise following one of at least: carrier policy, offered load, D2D communication equipment spacing; Described second condition comprise following one of at least: described carrier policy, described offered load, described D2D communication equipment spacing.
13. 1 kinds of device-to-device D2D communicators, are applied to D2D subscriber equipment, it is characterized in that comprising:
The first receiver module, for receiving the signaling of carrier network side, wherein, described signaling is used for notifying described D2D subscriber equipment to use WLAN (wireless local area network) WLAN to carry out communication between devices;
First communication module, for being used one or more the 2nd D2D subscriber equipmenies of described WLAN and presumptive area to carry out direct communication.
14. devices according to claim 13, is characterized in that, also comprise:
First finds module, for finding described one or more the 2nd D2D subscriber equipmenies in described presumptive area; Sending module, for sending WLAN communication request to described carrier network side.
15. according to the device described in claim 13 or 14, it is characterized in that, also comprises:
Handover module, for switching to carrier network under the control in described carrier network side;
Second communication module, for communicating at described carrier network and described one or more D2D subscriber equipmenies.
16. 1 kinds of device-to-device D2D communicators, are applied to carrier network side, it is characterized in that comprising:
The 3rd receiver module, the WLAN (wireless local area network) WLAN communication request sending for receiving a D2D subscriber equipment, wherein, described WLAN communication request is carried out communication between devices for one or more the 2nd D2D subscriber equipmenies of asking a D2D subscriber equipment and a D2D subscriber equipment to be found in presumptive area; Or second find module, for find a described D2D subscriber equipment and one or more the 2nd D2D subscriber equipment in described presumptive area;
Sending module, for sending signaling to a D2D subscriber equipment, notifies a described D2D subscriber equipment to use WLAN and described one or more D2D subscriber equipment to carry out direct communication.
17. devices according to claim 16, is characterized in that, also comprise:
Determination module, for determining that a described D2D subscriber equipment meets with described one or more the 2nd D2D subscriber equipmenies the condition that WLAN communicates by letter.
18. according to the device described in claim 16 or 17, it is characterized in that, also comprises:
The first control module, for meeting defaultly while switching to the first condition of carrier network from WLAN judging, controls a D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment and switches to described carrier network and communicate;
The second control module, for judging while meeting the default second condition from carrier network, controls a D2D subscriber equipment and described one or more the 2nd D2D subscriber equipment and switches to described WLAN and carry out direct communication.
19. 1 kinds of device-to-device D2D communication systems, is characterized in that comprising: according to claim 13 to the D2D communicator described in any one in 15 with according to claim 16 to the D2D communicator described in any one in 18.
Priority Applications (4)
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| CN201210299075.5A CN103634845B (en) | 2012-08-21 | 2012-08-21 | Device-to-device communication means, apparatus and system |
| EP13831554.4A EP2890205A4 (en) | 2012-08-21 | 2013-08-06 | Method, device, and system for device-to-device communication |
| PCT/CN2013/080915 WO2014029271A1 (en) | 2012-08-21 | 2013-08-06 | Method, device, and system for device-to-device communication |
| US14/422,586 US20150245191A1 (en) | 2012-08-21 | 2013-08-06 | Method, device, and system for device-to-device communication |
Applications Claiming Priority (1)
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| CN201210299075.5A CN103634845B (en) | 2012-08-21 | 2012-08-21 | Device-to-device communication means, apparatus and system |
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| CN103634845A true CN103634845A (en) | 2014-03-12 |
| CN103634845B CN103634845B (en) | 2019-03-01 |
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| EP (1) | EP2890205A4 (en) |
| CN (1) | CN103634845B (en) |
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| WO2017193385A1 (en) * | 2016-05-13 | 2017-11-16 | 华为技术有限公司 | Method and apparatus for establishing wireless connection |
| CN109076624A (en) * | 2016-05-13 | 2018-12-21 | 华为技术有限公司 | Wireless connecting establishment method and equipment |
| US10764408B2 (en) | 2016-05-13 | 2020-09-01 | Huawei Technologies Co., Ltd. | Method for establishing wireless connection and device |
| WO2018018773A1 (en) * | 2016-07-25 | 2018-02-01 | 中兴通讯股份有限公司 | Operation method and device for d2d/prose services |
| CN107666724A (en) * | 2016-07-25 | 2018-02-06 | 中兴通讯股份有限公司 | The execution method and device of D2D/ProSe business |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150245191A1 (en) | 2015-08-27 |
| CN103634845B (en) | 2019-03-01 |
| EP2890205A4 (en) | 2016-01-27 |
| WO2014029271A1 (en) | 2014-02-27 |
| EP2890205A1 (en) | 2015-07-01 |
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